Hair dryer



FIG. 1 is an isolated view of a hair dryer showing my new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a bottom plan view thereof;

FIG. 4 is a right side view thereof;

FIG. 5 is a left side view thereof;

FIG. 6 is a back view thereof; and,

FIG. 7 is a front view thereof. 

CLAIM The ornamental design for a hair dryer, as shown and described. 